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Author Question: Total per-capita consumption of alcohol A. has increased steadily since 1965. B. has remained ... (Read 58 times) |
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
Vaccines prevent between 2.5 and 4 million deaths every year.
The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.